Related tasksInstalling a hot swappable hard drive carrier on page 74Installing the hard drive backplane on page 81Installing the cooling shroud on page 66System memoryYour system supports DDR4 ECC unbuffered DIMMs (UDIMMs).NOTE: MT/s indicates memory module speed in Mega Transfers per second.Memory bus operating frequency can be 1600 MT/s, 1866 MT/s, 2133 MT/s, or 2400 MT/s depending on the following factors:• System profile selected (for example, Performance Optimized, Custom, or Dense Configuration Optimized)• Maximum supported memory module frequency of the processorsThe system contains four memory sockets — two sets of 2–sockets each. Each 2–socket set is organized into one channel. In each 2-socket set, the first socket release lever is marked white and the second socket release lever is marked black.Figure 45. Memory socket locations on the system boardMemory channels are organized as follows:Processor 1 channel 0: memory sockets A1 and A3channel 1: memory sockets A2 and A4The following table shows the memory populations and operating frequencies for the supported configurations:Table 20. Memory populations and operating frequencies for the supported configurationsMemory module type Memory modulespopulated perchannelOperating frequency (inMT/s) Maximum memory module ranksper channel1.2 VECC (UDIMM) 1 1600, 1866, 2133, 2400 Dual rank or single rank2 1600, 1866, 2133, 2400 Dual rank or single rankInstalling and removing system components 85
